X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m25.mx.aol.com ([64.12.137.6] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2724865 for flyrotary@lancaironline.net; Mon, 11 Feb 2008 11:47:16 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.6; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m25.mx.aol.com (mail_out_v38_r9.3.) id q.c4d.2b041360 (41809) for ; Mon, 11 Feb 2008 11:46:15 -0500 (EST) From: Lehanover@aol.com Message-ID: Date: Mon, 11 Feb 2008 11:46:15 EST Subject: Re: [FlyRotary] Re: Rotor 'slinging'; was Rotor Weight Codes To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1202748375" X-Mailer: Unknown sub 36 X-Spam-Flag: NO -------------------------------1202748375 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 2/11/2008 11:33:34 A.M. Eastern Standard Time, echristley@nc.rr.com writes: But as my washing machine with its weak springs demonstrates, an off-center spin can still shake the house. Washing polyester shirts, instead of cotton jeans, makes the shaking much less. The imbalance of the washer is a result of part of the load being on one side of the drum with a lessor amount of load on the opposite side. A simple imbalance. In the rotary the second rotor is at 180 degrees from the first in a simple balance. The displacement along the shaft causes a wiggle in the shaft ends, called a "rocking couple" that is completely damped by the counter weights. Lynn E. Hanover **************Biggest Grammy Award surprises of all time on AOL Music. (http://music.aol.com/grammys/pictures/never-won-a-grammy?NCID=aolcmp003000000025 48) -------------------------------1202748375 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
 
 
In a message dated 2/11/2008 11:33:34 A.M. Eastern Standard Time,=20 echristley@nc.rr.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>But as=20 my
washing machine with its weak springs demonstrates, an off-center s= pin=20
can still shake the house.  Washing polyester shirts, instead of=20 cotton
jeans, makes the shaking much less.
 
The imbalance of the washer is a result of part of the load being on on= e=20 side of the drum with a lessor amount of load on the opposite side. A=20 simple imbalance.
 
In the rotary the second rotor is at 180 degrees from the first in a si= mple=20 balance. The displacement along the shaft causes a wiggle in the shaft ends,= =20 called a "rocking couple" that is completely damped by the counter weights.=20
 
Lynn E. Hanover



Who's never won? Biggest Grammy Award surprises of all time on AOL Music.
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